/* CSS Reset & Editorial Foundations */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-reading);
  font-size: 1.05rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Accessible Interactive Elements */
button, input, select, textarea {
  font-family: var(--font-ui);
  font-size: inherit;
  color: inherit;
}

button {
  min-height: 44px;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}

input, select {
  min-height: 44px;
  padding-inline: var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus, select:focus {
  outline: none;
  border-color: var(--color-focus);
  box-shadow: 0 0 0 3px rgba(29, 114, 184, 0.15);
}

a {
  color: inherit;
  text-decoration: none;
}

/* W3C Focus-visible Standard */
:focus-visible {
  outline: 3px solid var(--color-focus) !important;
  outline-offset: 3px !important;
}

/* Helper accessibility classes */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Keyboard Skip Link */
.skip-link {
  position: fixed;
  inset: var(--space-3) auto auto var(--space-3);
  z-index: 9999;
  padding: var(--space-3) var(--space-5);
  background-color: var(--color-brand);
  color: var(--color-surface);
  font-family: var(--font-ui);
  font-weight: 600;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  transform: translateY(-150%);
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
}

/* User preference for motion reduction */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-margin-top: 0 !important;
  }
}

/* Global Table Foundations */
table {
  border-collapse: collapse;
}

th, td {
  border-color: var(--color-table-border, #9C8E7E);
}